I personally feel that support builds in wvw get underplayed because it’s not as easy to tag players.
Personally I feel that if I’m laying down combo fields and another player uses burning bolts etc that damage should count as my damage not his. Or if I’m constantly healing someone I should get an assist even if I didn’t tag that person myself. Going as far as buffing etc If I’m keeping my teammates alive and laying down fields that should count towards my bag count at the end of the fight.
IE:
Say I’m a guardian and I use my ultimate to heal my team and because of that they downed a few players I never had contact with. That should count as an assisted kill
If I’m an ele and I lay down a fire field and a warrior/thief whoever uses a whirl combo finisher because that’s my field I should either get numbers from that attack or I should get an assisted kill of they down a player as well.
this is just my personal opinion though.